CLA Coupe (C117) 2014-present

Driver's side not blowing hot air

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Old Jun 20, 2019 | 07:01 AM
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Merc_Guy_77's Avatar
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2014 CLA250 4Matic
Driver's side not blowing hot air

Hello all,
About a week ago I jumped in my car to go to work like any other morning and turned the heat on. I noticed that it did not get warm as fast as usual, and eventually not at all. I thought maybe something was wrong with my heating system which would be a lot to fix most likely. I then noticed that the passenger side of the car (normal vents, footwell vents, even the passenger half of the defroster) was blowing warm air as requested from the HVAC controls. The A/C works fine on both sides.

I haven't been able to do a "reset" like many have mentioned, it doesn't seem to work for me.

Please help! I have been freezing in the mornings and my defroster doesn't work because it just blows out cold air!
2014 CLA250 4Matic
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Old Jul 9, 2019 | 03:11 PM
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Merc_Guy_77's Avatar
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From: Pennsylvania
2014 CLA250 4Matic
Update, a few weeks later:
I let the this go briefly thinking maybe it was an electrical fluke but still nothing! I've head maybe it could be the heater valve, not letting warm air into the driver side? Anyone know of a forum on replacing this?
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